Meningitis - staphylococcal
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Staphylococcal meningitis is a bacterial infection of the thin tissues covering the brain and spinal cord (meninges).
Staphylococcal meningitis is caused by Staphylococcus bacteria. When it is caused by Staphylococcus aureus or Staphylococcus epidermidis bacteria, it usually develops as a complication of surgery or as an infection that spreads through the blood from another site (hematogenous spread).
Risk factors include:
Infections of heart valves
Past infection of the brain
Past meningitis due to spinal fluid shunts
Recent brain surgery
Spinal fluid shunt
Symptoms may come on quickly, and include:
Other symptoms that can occur with this disease:
Exams and Tests
The doctor or nurse will examine the patient. This will usually show:
Fast heart rate
Mental status changes
- Stiff neck
If the doctor thinks meningitis is possible, a lumbar puncture ("spinal tap") is done to remove a sample of spinal fluid (cerebrospinal fluid, or CSF) for testing. If you have a spinal fluid shunt, the sample may be taken from this instead.
Tests may include:
Antibiotics should be started as soon as possible. Vancomycin is the first choice for suspected staphylococcal meningitis. Nafcillin is sometimes used instead.
Often, treatment will include a search for, and removal of, possible sources of bacteria in the body. These include shunts or artificial heart valves.
Early treatment improves the outcome. However, 3 - 5% of patients do not survive. Young children and adults over age 50 have the highest risk of death.
Staphylococcal meningitis often improves more quickly, with better results, if the source of the infection is removed. The source may include shunts, hardware in joints, or artificial heart valves.
When to Contact a Medical Professional
Call the local emergency number (such as 911) or go to an emergency room if you suspect meningitis in a young child who has the following symptoms:
Call the local emergency number if you develop any of the serious symptoms listed above. Meningitis can quickly become a life-threatening illness.
In high-risk people, taking preventive antibiotics before diagnostic or surgical procedures may help reduce the risk. Discuss this with your doctor.
Swartz MN. Meningitis: bacterial, viral, and other. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 360.
Thigpen MC, Whitney CG, Messonnier NE, et al. Emerging Infections Programs Network. Bacterial meningitis in the United States, 1998-2007. N Engl J Med. 2011 May 26; 364:2016-2025.
Tunkel AR, Van de Beek D, Scheld WM. Acute meningitis. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, PA: Elsevier Churchill Livingstone; 2009:chap 84.
- Last reviewed on 8/31/2014
- Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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